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142120354 = 2311922783
BaseRepresentation
bin10000111100010…
…01010110100010
3100220102110110211
420132021112202
5242340322404
622034044334
73344001025
oct1036112642
9326373424
10142120354
1173250142
123b7196aa
13235a04ac
1414c371bc
15c724b04
hex87895a2

142120354 has 8 divisors (see below), whose sum is σ = 213258240. Its totient is φ = 71034276.

The previous prime is 142120291. The next prime is 142120369. The reversal of 142120354 is 453021241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5154 + ... + 17629.

It is an arithmetic number, because the mean of its divisors is an integer number (26657280).

Almost surely, 2142120354 is an apocalyptic number.

142120354 is a deficient number, since it is larger than the sum of its proper divisors (71137886).

142120354 is a wasteful number, since it uses less digits than its factorization.

142120354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25904.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 142120354 is about 11921.4241598896. The cubic root of 142120354 is about 521.8576971996.

Adding to 142120354 its reverse (453021241), we get a palindrome (595141595).

The spelling of 142120354 in words is "one hundred forty-two million, one hundred twenty thousand, three hundred fifty-four".

Divisors: 1 2 3119 6238 22783 45566 71060177 142120354